The chip velocity (in m/min) is

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Direction: An orthogonal operation is carried out at 20 m/min cutting speed, using a cutting tool of rake angle 15 degree. The chip thickness is 0.4 mm and uncut chip thickness is 0.2 mm.

The chip velocity (in m/min) is

1. 8
2. 10
3. 12
4. 14

Correct Option: B

V_c	=	T₁	= r
V		T₂

V_c = 0.5 × 20 = 10 m /min